| York Error Code | What this means |
|---|---|
| Error Codes E7 and F3, or 4 and 15 flashes | Communication failure |
| Error Codes E1, E2, F21, F7, F6, and F25, or 10, 11, 12, and 13 flashes | Sensor failure |
| Error Code E14 | Indoor fan malfunction |
| Error Codes F19 or 6 flashes | High voltage |
| Error Codes F8 or 9 flashes | Outdoor fan malfunction |
| Error Codes F11 or 18 flashes | Abnormal compressor function |
| Error Code F2 and F23, or 24 and 25 flashes | Overcurrent problem |